Amana Tool Spektra™ Extreme Tool Life Coated Solid-Carbide Single O-Flute Plastic Cutting Up-Cut CNC Router Bit, 1/4-Inch Diameter x 1-Inch Cutting Height x 1/4-Inch Shank
Spektra™ Spiral O-Flute
Plastic Cutting CNC Bit
Amana Tool 51405-K is a solid-carbide, single-flute, up-cut spiral O-flute CNC router bit with a 1/4-inch diameter, 1-inch cutting height, 1/4-inch shank, 2-1/2-inch overall length and Spektra™ nACo® ceramic coating for clean routing in plastics, acrylics, solid-surface materials and wood.
Main Product Description
Amana Tool 51405-K is the exact Tool No. shown on its dedicated official product page in the Solid Carbide Spektra™ Extreme Tool Life Coated Spiral O-Flute Plastic Cutting CNC Router Bits family. The official specification block confirms up-cut direction, 1/4-inch diameter, 1-inch cutting height, 1/4-inch shank, 2-1/2-inch overall length, one flute and nACo® ceramic coating.
The single O-flute geometry is manufactured from an exclusive solid-carbide grade, polished to a mirror finish and designed to eject chips upward. Amana Tool identifies super-clean, smooth cutting in acrylic materials, other plastics and wood, with right-hand helix and right-hand cut geometry.
The mirror-finished cutting edge is intended to promote chip evacuation, reduce chip re-welding, dissipate heat and help prevent melting. The Spektra™ nACo® nanocomposite coating is a micro-thin ceramic treatment designed to retain cutting-edge sharpness and lubricity while resisting heat and oxidation.
Amana Tool lists acrylic, Plexiglas®, Lucite®, ABS, acetal, nylon, PVC, HDPE, UHMWPE, polycarbonate, PETG, solid surface, ACM, laminate, sign foam, engineered plastics, cork and wood among the supported materials. The exact page publishes a 35,000 RPM maximum, while the linked official chart provides an 18,000 RPM operating reference for 51405-K.
Best Fit Applications
Product Highlights
One-Inch Cutting Height
The exact 51405-K geometry combines a 1/4-inch cutting diameter with a 1-inch cutting height and 2-1/2-inch overall length.
Spektra™ nACo® Coating
The micro-thin nanocomposite ceramic coating is engineered to retain edge sharpness and lubricity while resisting heat and oxidation.
Mirror-Finished Up-Cut Edge
The polished right-hand up-cut geometry supports clean cutting, chip evacuation and reduced chip re-welding in industrial CNC applications.
Compatibility & Installation Notes
Confirm exact Tool No. 51405-K, a compatible 1/4-inch CNC collet, adequate cutter clearance and guarding, secure workholding and automatic machine feeding. Observe the exact-page 35,000 RPM maximum, use the linked family chart only as an operating reference, and account for up-cut chip direction. For polycarbonate such as Lexan™, Amana Tool recommends the slowest suggested feed rates and the shortest practical bit. Follow Amana Tool and CNC machine-manufacturer safety documentation.
One-Inch O-Flute Cutting Height for Plastics and Acrylic
Amana Tool 51405-K combines a 1/4-inch solid-carbide cutting diameter, 1-inch cutting height, 1/4-inch shank, 2-1/2-inch overall length, single up-cut O-flute and 35,000 RPM maximum.
Its polished cutting edge and Spektra™ nACo® coating support clean CNC routing, chip evacuation, heat control and reduced chip re-welding across acrylic, plastics, sign materials, solid surface and wood.